Program support utilities

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C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++0x feature) Atomic operations library (C++0x feature) Thread support library (C++0x feature)
Utilities library
Basic types Dynamic memory management Error handling Runtime type information initializer_list Program utilities Compile-time rational arithmetic (C++0x) Date and time bitset Function objects Type traits Relational operators Pairs and tuples pair tuple (C++0x) make_pair Swap, forward and move swap forward (C++0x) move (C++0x) move_if_noexcept (C++0x)
Program support utilities
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Contents 1 Program termination 1.1 Functions 1.2 Macro constants 2 Communicating with the environment 3 Signals 3.1 Functions 3.2 Macro constants 3.2.1 Signal types 4 Non-local jumps 4.1 Types 4.2 Functions

[edit] Program termination

The following functions manage program termination and resource cleanup.

Functions
Defined in header <cstdlib>
abort	causes abnormal program termination (without cleaning up) (function)
exit	causes normal program termination with cleaning up (function)
quick_exit (C++0x)	causes normal program termination without completely cleaning up (function)
_Exit (C++0x)	causes normal program termination without cleaning up (function)
atexit	registers a function to be called on exit() invocation (function)
at_quick_exit (C++0x)	registers a function to be called on quick_exit invocation (function)
Macro constants
EXIT_SUCCESS	indicates successful program execution (macro constant)
EXIT_FAILURE	indicates unsuccessful program execution (macro constant)

[edit] Communicating with the environment

system	calls the host environment's command processor (function)
getenv	access to the list of environment variables (function)

[edit] Signals

Several functions and macro constants for signal management are provided in <csignal> header.

Functions
signal	sets a signal handler for particular signal (function)
raise	runs the signal handler for particular signal (function)
Macro constants
SIG_DFL	default signal handling (macro constant)
SIG_IGN	signal ignored (macro constant)
SIG_ERR	error was encountered (macro constant)
Signal types
SIGABRT	abnormal termination (macro constant)
SIGFPE	floating point exception (macro constant)
SIGILL	invalid instruction (macro constant)
SIGINT	interactive attention request sent to the program (macro constant)
SIGSEGV	invalid memory access (macro constant)
SIGTERM	termination request sent to the program (macro constant)

[edit] Non-local jumps

Types
jmp_buf	execution context type (function)
Functions
setjmp	saves the context (function)
longjmp	jumps to specified location (function)